//package com.ruoyi.gateway.filter;
//
//import java.nio.CharBuffer;
//import java.nio.charset.StandardCharsets;
//import java.util.concurrent.atomic.AtomicReference;
//
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.cloud.gateway.filter.GatewayFilter;
//import org.springframework.cloud.gateway.filter.factory.AbstractGatewayFilterFactory;
//import org.springframework.core.io.buffer.DataBuffer;
//import org.springframework.core.io.buffer.DataBufferUtils;
//import org.springframework.http.server.reactive.ServerHttpRequest;
//import org.springframework.stereotype.Component;
//import com.alibaba.fastjson2.JSON;
//import com.alibaba.fastjson2.JSONObject;
//import com.ruoyi.common.core.utils.ServletUtils;
//import com.ruoyi.common.core.utils.StringUtils;
//import reactor.core.publisher.Flux;
//
///**
// * 验证码过滤器
// * @author ruoyi
// */
//@Component
//public class ValidateCodeFilter extends AbstractGatewayFilterFactory<Object> {
//
//    private final static String[] VALIDATE_URL = new String[]{"/auth/login", "/auth/register"};
//
//    @Autowired
//    private ValidateCodeService validateCodeService;
//
//    @Autowired
//    private CaptchaProperties captchaProperties;
//
//    private static final String CODE = "code";
//
//    private static final String UUID = "uuid";
//
//    @Override
//    public GatewayFilter apply (Object config) {
//        return (exchange, chain) -> {
//            ServerHttpRequest request = exchange.getRequest ();
//
//            // 非登录/注册请求或验证码关闭，不处理
//            if ( ! StringUtils.equalsAnyIgnoreCase ( request.getURI ().getPath (), VALIDATE_URL ) || ! captchaProperties.getEnabled () ) {
//                return chain.filter ( exchange );
//            }
//
//            try {
//                String rspStr = resolveBodyFromRequest ( request );
//                JSONObject obj = JSON.parseObject ( rspStr );
//                validateCodeService.checkCaptcha ( obj.getString ( CODE ), obj.getString ( UUID ) );
//            } catch ( Exception e ) {
//                return ServletUtils.webFluxResponseWriter ( exchange.getResponse (), e.getMessage () );
//            }
//            return chain.filter ( exchange );
//        };
//    }
//
//    private String resolveBodyFromRequest (ServerHttpRequest serverHttpRequest) {
//        // 获取请求体
//        Flux<DataBuffer> body = serverHttpRequest.getBody ();
//        AtomicReference<String> bodyRef = new AtomicReference<> ();
//        body.subscribe ( buffer -> {
//            CharBuffer charBuffer = StandardCharsets.UTF_8.decode ( buffer.asByteBuffer () );
//            DataBufferUtils.release ( buffer );
//            bodyRef.set ( charBuffer.toString () );
//        } );
//        return bodyRef.get ();
//    }
//}
